Packing-ring.



J. J. HELLING PACKING RING.

APPLICATION FILED DEC. 7, 1910.

Patiented Oct. 17, 1911.

J HeZZi/L witnesses awu M fll attorneys citizen of the iiniTEn sTATEs PATENT oEEIoE.

JULIUS J. HELLING, 0F UNION, MISSOURI.

PACKING-RING.

Specification of Letters Patent. Application filed December 7, 1910. Serial No.

Patented Oct. 17, 1911 596,077.

To all whom it may concern:

Be it known that I, JULIUS J. HELLING, a

United States, residing Union, in the county of Franklin and State of Missouri, have invented. certain new and useful Improvements in-Packing-Rings, of

which the following is a specification. This invention relates to improvements in packing rings The primary object of this invention is to provide a packing ring that will expand of its own accord to compensate for wear, thus remaining air tight until the wearing parts have become worn into.

A further object of this invention is to provide a packing ring-that does not require the use of set screws, and other like objectionabledevices.

packing ring. Specifically, 'the packing ring comprises the inner split expandingring 4, and the outer bearing rings 5, which are also split,.as at 6. The bearing rings 5 are each, exactly one half the width of the expand- 'ing ring 4;so that when the rings 5 are fitted be flush.

on its periphery at a point centrally ofthe stud 7 adapted to engage notches 8 formed on the ring 4 the edges of the rings will The expanding ring 4 is provided width thereof with the radially projecting in the inner edges of the outer or bearing rings 5 when the parts are assembled, which n connection with the drawings,

elevation of appiston and cylthe parts shown in to the drawings for a more par the expanding ring.

prevents any rotary displacement of the bearing rings.

When the parts comprising the ring are assembled, the ring is mounted in the usual recess in the piston, and it is obvious that as the bearing rings 5 become worn, the in.-

ner or expanding ring 4 will expand abcordingly to keep the bearing rings pressed in air t'ght contact with the inner wall of the cylinder.

It is to be understood that theuse of my improved packing ring is not confined to pistons alone, but that it may be used in any other connection where a ring of this character would be desired. It will also be understood that the ring may be made of different diameters and widths to meet the requirements in each particular case.

From the foregoing description taken in it is thought and advantages of this be readily understood that the construction packing ring will without requiring a nation.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

A packing ring of the class described comprising an inner split expanding ring provided on its periphery with a centrally disposed radially projecting stud and a pair of outer bearing rings split at directly opposite points at their circumference and provided in their inner edges with co-incident notches to receive the stu'd'of the expanding ring, the bearing rings fitting on the outside of the expanding ring with their inner edges more extended explacontiguous, and each being half the Width Of In testimony whereof I aflix in presence of two witnesses.

JULIUS J. HELLING.

Witnesses SEBASTIAN WApz,

R.. W. HELLING.

my signature 

